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HBM4SK hynix—HBM4SK hynix—HBM4SK hynix—

SK hynix

HBM memory, DRAM, NAND

KRpublicest. 1983skhynix.com (opens skhynix.com)Checked 25 Sep

The brief

Analyst view
  • First to supply HBM3E to customers (March 2024) and first to mass-produce 12-layer HBM3E (Sept 2024).
  • Completed HBM4 development and readied mass production in September 2025.
  • Main HBM supplier for NVIDIA's AI GPUs.
Programs

SK hynix, one program

Updated 10 Mar 2026
HBM4The sixth generation of high-bandwidth memory: stacks of 12 DRAM chips with twice as many connections as HBM3E, placed next to AI chips.DeployNextHBM4 volume supply for NVIDIA Rubin · 2026Updated 10 Mar 2026View program →
Research · Proto · Pilot · Deploy · Scaling

Company & funding

Parent
SK Group
HQ
KR
Founded
1983

Partners & customers

1 customer · 1 partner
  • Customer
    NVIDIA

    Main buyer of its HBM for AI GPUs.

  • Partner
    TSMC

    Works with TSMC on HBM4 base chips.

Primer